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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* */
/* This file is part of the program and library */
/* SCIP --- Solving Constraint Integer Programs */
/* */
/* Copyright 2002-2022 Zuse Institute Berlin */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* */
/* You should have received a copy of the Apache-2.0 license */
/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
/* */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**@file reader_gms.h
* @ingroup FILEREADERS
* @brief GAMS file reader and writer
* @author Ambros Gleixner
*
* This reader writes a CIP in GAMS format.
* It can write all kinds of linear and nonlinear constraints (as occurring in MINLPs) and indicator constraints.
*
* If SCIP has been compiled with GAMS=true, it can also read GAMS model instances.
* This requires a working GAMS system.
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_READER_GMS_H__
#define __SCIP_READER_GMS_H__
#include "scip/def.h"
#include "scip/type_cons.h"
#include "scip/type_prob.h"
#include "scip/type_result.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
#include "scip/type_var.h"
#ifdef __cplusplus
extern "C" {
#endif
/** includes the gms file reader into SCIP
*
* @ingroup FileReaderIncludes
*/
SCIP_EXPORT
SCIP_RETCODE SCIPincludeReaderGms(
SCIP* scip /**< SCIP data structure */
);
/**@addtogroup FILEREADERS
*
* @{
*/
/** writes problem to file */
SCIP_EXPORT
SCIP_RETCODE SCIPwriteGms(
SCIP* scip, /**< SCIP data structure */
FILE* file, /**< output file, or NULL if standard output should be used */
const char* name, /**< problem name */
SCIP_Bool transformed, /**< TRUE iff problem is the transformed problem */
SCIP_OBJSENSE objsense, /**< objective sense */
SCIP_Real objscale, /**< scalar applied to objective function; external objective value is
* extobj = objsense * objscale * (intobj + objoffset) */
SCIP_Real objoffset, /**< objective offset from bound shifting and fixing */
SCIP_VAR** vars, /**< array with active variables ordered binary, integer, implicit, continuous */
int nvars, /**< number of active variables in the problem */
int nbinvars, /**< number of binary variables */
int nintvars, /**< number of general integer variables */
int nimplvars, /**< number of implicit integer variables */
int ncontvars, /**< number of continuous variables */
SCIP_CONS** conss, /**< array with constraints of the problem */
int nconss, /**< number of constraints in the problem */
SCIP_RESULT* result /**< pointer to store the result of the file writing call */
);
/** @} */
#ifdef __cplusplus
}
#endif
#endif